I know the 411 will interpolate between the 2 maps, does it have long term trims? Reason I ask is I pulled to a lower elevation, then fired up the scan tool to get some data. I only logged KR, didn't log any of the other parameters where it'll pull timing. I opened the throttle to atmospheric locked in 4th and it began to pull around 5 degrees of timing. It did this for a while, then slowly dropped to 4, then 3, then 2, 1, and then none and stayed at 0 KR after that. Was the PCM trimming timing back to a happier spot? The truck never accelerated much during that ordeal as it had 8500# behind it so the load and RPM were kept constant. Once it read 0 KR after that, I figured I was good to go but now I'm wondering if it saved itself from me. I want the timing on the upper end, but I don't want any KR and I'd never hit these load cells with the current tune either.